I’ve had the same isolation experience after kicking Facebook 3ish years ago. Also, it seems to have only gotten more isolating since. My wife effectively has to operate as a proxy between most of our family/friends and me, which is not a position she enjoys, and is not a position I intended on her being in.
I still come out with advertising jingles from the 90s that embedded themselves in my conscious as a teenager. No idea if those jingles exist now - I did make a effort to watch the Christmas adverts, m&s, John Lewis, Tesco, bbc, Sainsbury's etc, on YouTube. I also make a conscious effort to look at movie trailers, and indeed let YouTube play past the first 5 seconds on trailers of films that I don't know about and look interesting.
Not gonna lie, it isolates you from mainstream society a bit. Whether that is good or bad is debatable.